To improve the thermal comfort cooking in residential kitchen in summer,it is necessary to optimize the kitchen air conditioning.This paper evaluates the effects of air supply method,air supply temperature,air supply angle position,and air supply outlet shape on kitchen air conditioning performance through a series of experiments.The results show that the higher the air supply temperature,the worse the air conditioning effect.When the outdoor temperature is higher than the indoor temperature,door-side make-up air should be selected.When the outdoor temperature is close to the indoor temperature,window-side make-up air performs better.The abdominal skin temperature of personnel increases by 4.62 to 6.05 ℃ when air conditioning is applied to double air outlets,and by 5.85 to 9.42 ℃ when air conditioning is applied to long air outlets.Under the same conditions,without air conditioning,the abdominal skin temperature of personnel can increase by 11 ℃.The air conditioning effect is best when the air supply angle is 60 ℃ with two air outlets.At this time,the air temperature at a height of 1.1 meters in front of the personnel is between 30.43 and 33.15 ℃,and the predicted Thermal Sensation Vote(TSV)is between 0.39 and 0.51.The relative capture efficiency of the range hood reaches 96.51%.
kitchen air conditioningthermal comfortmakeup airair conditioning supplyskin temperature