Comfort AssessmentBased onthe thermal environmentthermal manikin

The present invention relates to the field of air conditioning, and in particular, there is a thermocynthetic comfort evaluation method based on a warm environmental fake person.

Background:

In order to obtain accurate air conditioning hot comfort data, The comfort of the air conditioner and the new comfortable air conditioning product design provide data foundation, which generally requires thermal comfort test for air conditioning samples to obtain real comfort information. In the hot comfort test of air conditioning, a large number of people often need to study the comfortable data of the air conditioner according to the comfort experience filled in the tester, and according to the resulting comfort data, the air conditioning sample is carried out according to the result. Debug, so that the final air conditioner can better meet human comfort requirements.

However, when air-conditioning comfort is performed, due to the influence of personal physiology, psychohydramics and individual differences in human tests, the evaluation of air conditioning comfort is too Many, leading to the evaluation of air conditioning comfort, difficult to meet the requirements of air conditioning comfort.

The object of the present invention is to propose a warm-based The fake people's thermal environmental comfort evaluation method can improve the data accuracy of air conditioning comfort evaluation and meet the requirements of air conditioning comfort.

In accordance with one aspect of the present invention, a thermocynthetic compliant evaluation method based on a warmer dummy is provided, including:

Gets convection heat exchange heat between heely dummy and the environment; According to the convection heat radiation heat transfer, the average skin temperature is acquired;

According to the human average skin temperature;

The thermal environment comfort is scored according to the equivalent space temperature.

Preferably, the step of acquiring the human averaging skin temperature in accordance with the convection radiation heat exchange includes:

acquires the human breathing heat transfer value;

Obtaining the evaporation of the human skin; According to the convection radiation heat transfer, human breathing heat transfer and human skin evaporation heat transfer The total dissipation of physical fareers and environments;

According to the following formula, the average skin temperature of the human body is determined:

TSK u003d 35.77-0.028QT

wherein TSK is the average skin temperature of the human body. QT is a total heat dissipation between the warm body dummy and the environment. QT unit is W / M2. Pu003e Pu003e

Preferably, the human breathing heat transfer value is determined by the formula:

QRES u003d 1 middot; 7 x 10 mdash; 5M (5867-PA) +0 middot; 0014M (34-TA)

where qres is human breathing heat transfer, the unit is W / m2, m is a human body metabolism, unit For W / m2, Pa is ambient water vapor voltage, take 1500Pa, Ta as air temperature, take 20 deg; c.

Preferably, the human skin evaporation heat exchange value is determined by the formula:

ES u003d 3 middot; 05 x 10 mdash; 3 (5733-6 middot; 99M-PA) +0 middot; 42 (M-58 Midd 2; 15) Where ES is human breathing and heat, unit is W / m2, m For the human metabolism, the unit is W / m2, and Pa is ambient water vapor voltage, take 1500 Pa.

< Preferably, the step of obtaining the equivalent space temperature of a warm body dummy according to the human averaging skin temperature comprises:

Determination of warm The area weighted average skin temperature;

Determines the area weighted heating heat flow rate of thermor fake person;

according to the warmers Human area weighted surface temperature and area weighted heating heat flow rate determines the temperature of the warm body dummy area weighted average equivalent space.

Preferably, the temperature of the heterogeneous portion of the warmer is acquired by the following formula:

Where: i is a heaters dummy segmentation number, eta; is greater than 1 natural number; Teq, WH 〇le is a hetero-equivalent space temperature of heaten, and the unit is degrees Celsius, deg; (: 44, "1! 〇16 is the temperature of the heaters of the heaters, the unit is dev; (:; ^^ 11 〇16 is the area weighted heating heat flow rate of the warm body dummy, the unit is a tile per square) Mi, 1/1112^ 81 ^ 4 is the surface temperature of the warm body dummy segment I, the unit is degrees Celsius, deg; C; Qi is the heating heat flow of the heaters of the warm body dummy, the unit is a wattage per square meter, W / m2; AI is The surface area of the warm body fake human segmentation I, the unit is square meters, M2; Heal, WHOL is the heat exchange coefficient between the surface and the environment between the warm body dummy, determined in a standard uniform thermal environment, in W / M2 Midd 2; Deg ; C.

Preferably, the step of scoring the thermocynthetic comfort according to the equivalent space temperature includes:

detects the warmer dummy The thermal resistance;

The thermal environmental comfort is scored according to the thermal resistance and area weighted average equivalent space of thermor dummy.

Preferably, the step of scoring the thermal environmental comfort according to the thermal resistance and area weighted average equivalent space temperature of the warm body fake person: [

Where RTEQ, WINTER is when the heat is charged, the indoor environmental warmer dummy evaluates score; if RTEQ, Winter gt; 5, take RTEQ , Winter u003d 5; if RTEQ, Winter u003cL takes RTEQ, Winter u003d 1 〇

In the present invention, heely dummy is used as a thermal environmental comfort evaluation method. Objects, can effectively avoid the influence of personal physiology, psychological factors, and individual differences in the human test for testing accuracy, achieving thermal comfort status test in non-stable, non-uniform thermal environments, and can put wind speed, Comprehensive treatment of temperature, humidity, radiation temperature, clothing, metabolic rate, etc. Air conditioning product design provides the basis to meet the requirements of air conditioning comfort.

It is to be understood that the above general description and the description of the following description are merely exemplary and interpretative, and the invention is not limited.

DETAILED DESCRIPTION OF THE INVENTION

The following description and the drawings are fully shown. DETAILED DESCRIPTION OF THE INVENTION To enable those skilled in the art to practice them. Other embodiments may include structural, logical, electrical, process, and other changes. Embodiments only represent possible changes. Unless clear requirements, separate components and functions are optional, and the order of operation can beChange. Some embodiments and features may be included or replaced with partial and characteristics of other embodiments. The scope of the embodiments of the present invention includes the entire scope of the claims, and all of the obtained equivalents of the claims. Herein, various embodiments can be denoted by terms alone or in total; inventive rDQUO; For any single invention or inventive concept. In this paper, a relationship term such as the first and second, etc. is only used to distinguish an entity or operation with another entity or an operational area, without requiring or implying any actual relationship between these entities or operations. order. Moreover, the term ldquo; includes rdquo; ldquo; contained rdquo; or any other variable intended to cover non-exclusive containe, so that the process, method, or device including a series of elements, not only those elements, but also not clear Other elements listed, or include elements inherent to such a process, method, or device. In the case where there is no more restrictions, the statement ldquo; includes a hellip; hellip; rdquo; defined elements, there is no elimination in the process, method, or device including the elements, there is also an additional element. In this paper, various embodiments are described in waywarding, each of the embodiments have differently described in relation to other embodiments, and the same similar parts of the respective embodiments can be seen. For the method, product, etc. of the examples, the product, etc., since it corresponds to the method portion disclosed in the examples, the relatively simple order is described, and the relevant method sections will be described.

See FIGS. 1 and 2, a schematic structural diagram of a thermostat dummy and its heating control region. Thermal dummy test system is a test system that can be used to test heat exchange between the human and environment in a non-aerospaceous, non-uniform thermal environment. In this embodiment, the warm body dummy for testing uses a 16-zone design. Each section can be independently controlled, the main joint can be rotated, and the human body attitude can be adjusted according to the required demand. The temperature control system adopts the human thermal flow and skin temperature coupling control strategy based on human thermal balance equation, and can monitor the average temperature and its thermal flow of any zone. Thermal dummy test system introduces an equivalent temperature, partial equivalent temperature and other evaluation indicators, which can be evaluated for steady state and non-stable thermal environments.

The warm body fake person performs separate heating control with a low voltage power source, and arranges the temperature sensor to measure the surface temperature, and a plurality of sensors are set for the region where the heat exchange condition is different. Measure the surface temperature, such as legs, torso, and hips. The heating heat flow and surface temperature of the fake person each partition are controlled by computer.system.
The physical model of the warmer fake person uses a copper material, and the thermal conductivity of copper is very good, and the internal and external surface temperature is very high. The heating portion of the heaters of the warmer is arranged in the inner surface, and the heating power hooks on the three-dimensional spatial surface of the fake person's corresponding partition, and the heating device is sticker on the inner surface of the dummy, and the other side is laid, which can be further guaranteed Surface temperature uniformity of the same region. The heat preservation is carried out in addition to the heat transfer film, so that the heating heat flow is transmitted in the form of a dummy to the external environment, and the heat dissipation flow between the fake people and the environment can be accurately measured.

Thermal dummy control system is used in different partitions of dummy, including facial, head, back, and belly, and abdomen, respectively. Back, hip, left upper arm, left upper arm, inside, upper right arm, left front arm, right arm, left hand, right hand, left thigh, left thigh, right thigh, right thigh, left calf, right Legs, left, right, etc. 22. The computer measuring and control software uses the transmission integral PID process to control the heating duty cycle of each heating device by controlling the allocation of the respective relay switches 1 "22 of the heating devices, thereby adjusting the heating time of the heat transfer of 22 heating regions heating means. The purpose of controlling the heat state of each partition is achieved.

FIG. 3, according to an embodiment of the present invention, the thermal environmental comfort evaluation method based on the warm body dummy includes: obtaining convection between the warmer dummy and the environment. Radiation heat exchange heat; the average skin temperature of the human body is acquired according to the convection radiation heat transfer; the equivalent space temperature of the warm body fake person is obtained according to the average skin temperature of the human body; the thermal environmental comfort is scored according to the equivalent space temperature.

In the present invention, the warmer dummy is used as the object of the thermal environmental comfort evaluation method, which can effectively avoid personal physiology, psychological factors and individual differences during the human test. Impact on the influence of test accuracy, realization of hot comfortable state test in non-stable, non-uniform thermal environments, and can be integrated with wind speed, temperature, humidity, radiation temperature, clothing, metabolic rate, etc. The comfort score can simulate the comfort of the individual attitude of the human body, providing an existing air-conditioning comfort, and provides the design of the new comfortable air conditioning product design to meet the evaluation of air conditioning comfort.

The step of acquiring the temperature of the human body according to the convection radiation heat transfer includes: acquiring the human breathing heat transfer value; acquires the human skin evaporation and heat transfer value; reflective heat transfer according to the convection radiation, human body Respiratory heat and human skin evaporate heat transfer to determine total heat dissipation between hematic dummy and environments;

According to the following formula, the average skin temperature of the human body is determined: [123

wherein the ES is human breathing heat transfer, and the unit is W / m2, and M is the human metabolism. The unit is W / m2, and the PA is ambient water vapor voltage, take 1500Pa .

Thermor fake person controls the thermal balance equation in the human body, and the cost of the dummy depends on the heat exchange between the human body and the surrounding environment. In the case of the human body, the thermal balance equation is as follows:

The character is the surface temperature of the warm body Adjust the control equation, the temperature of the heater dummy surface temperature depends on the heat dissipation between the dummy and the environment or the heating power of the dummy.

After determining the relationship between the average skin temperature of the human body and the convective radiation heat exchange between the human body and the environment, the entire human body can be determined according to the convective radiation between the human body and the environment. The average equivalent space temperature of the surface is then evaluated using this average equivalent space temperature.

In the process of evaluating, the calibrated dummy is placed in a predetermined warm body dummy detection position, test the dummy head, the upper arm, left and right arms, left and right hands, back, Chest, hip, left and right thighs, left and right calf, left and right suits, etc., the indoor environment reaches the thermal stability, the warm body dummy satisfies the control requirements, record the test data within the acquisition time. The relationship between equivalent space temperature and human body feels depend on human activity level and dressing. When indoor activities, the metabolic rate is 70W / m2, and the heat removal is 0.50 clo and L.OOCLO.

The step of obtaining the equivalent space temperature of the warmer dummy according to the human averaging skin temperature includes: determining the temperature of the heaters of the warmer dummy; determining a warmer dummy The area weighted heating heat flow rate; the temperature and area weighted heating heat flow rate and area weighted by the heating of the warmer are determined to determine the average equivalent space temperature of the heaters.

The area weighted surface temperature rate of the warm body fake is acquired by the formula:

Where: i is a heaters, eta; is greater than 1 natural number; Teq, WH 〇le is the temperature of the hetero-equivalent space temperature, unit is degrees Celsius, deg; (: 44) "1! 〇16 is the temperature of the heaters of the warmer, the unit weighted the average skin temperature, the unit is dev; (:; ^^ 11 〇16 is the area weighted heating heat flow rate of the warm body dummy, the unit is a tile per square meter, 1 / 1112 ^ 81 ^ 4 is the surface temperature of the warm body fake person segment I,The unit is degrees Celsius, deg; C; Qi is the heating heat flow of the heaters of the warm body fake, the unit is a wattage per square meter, W / m2; AI is the surface area of the warm body fake human segmentation I, the unit is square meter, M2 Heal, WHOLE is the heat exchange coefficient between the surface and the environment between the heaters and the environment, and the unit is W / M2 middot; deg; c.

The warmer dummy area weighted average equivalent space temperature can be determined by the formula described above.

The step of score the thermal environmental comfort according to the equivalent space temperature in determining the temperature of the heaters of the warm body dummy, the step of score the thermal environmental comfort according to the equivalent space, including: detection of a warmers The thermal resistance; the thermal environmental comfort is scored according to the thermal resistance and area weighted average equivalent space of the warm body dummy.

In different seasons, due to the difference in the body, the thermal resistance will change accordingly, to use the air-conditioning relatively typical summer and winter as an example, summer due to less dress Therefore, the thermal resistance is smaller, generally taken. 50ClO, while winter is large, therefore, the thermal resistance is large, generally I. Ooclo. Of course, due to the difference in temperature in the region, the thermal resistance also changes accordingly as the geographical changes, and the actual test will also select a suitable dressing thermal resistance, which is typically typical in this embodiment. The heat evaluation method will be described in summer cooling winter.

The step of scoring the thermal environmental comfort according to the thermal resistance of thermal dummy and the area weighted average equivalent space temperature is performed by the following formula:

[

Where RTEQ, WINTER is when the heat is charged, the indoor environmental warmer dummy evaluates score; if RTEQ, Winter gt; 5, take RTEQ Winter u003d 5; if RTEQ, Winter u003cL takes RTEQ, Winter u003d 1. When the heat is charged, the equivalent space temperature of the warm body fake person should be between 19.5 deg; C? 26.7 deg; C, the score is performed in accordance with the present formula.

In this embodiment, the indoor environmental warmer dummy evaluation score is 5 levels, wherein the score is 0? 1 is the first grade, 1? 2 is the second level, 2? 3 is the third level, 3? 4 is the fourth level, 4? 5 is the fifth level, the higher the level, the better the hot environment comfort, the higher the body's comfort.

Through the above manner, the thermal environmental comfort of the air conditioner can be scored with the thermal environmental comfort of the air conditioner.This provides accurate data foundation for empty comfort, improvement programs and comfortable air-conditioning product design.

It should be understood that the present invention is not limited to the flow and structure shown above and shown in the drawings, and various modifications can be made without departing from their extent.Change.The scope of the invention is limited only by the appended claims.