Research on Smart HVAC System for Improving Productivity

Abstract

As the global warming aggravated the demand of air conditioning rises exacerbating the energy consumption In Taiwan office buildings air conditioning is responsible for the largest proportion of total building energy consumption soenergy conservation ofair-conditioning will be a key project for energy-saving measures Taiwan's energy conservation policy recommends that the air conditioning temperature be set at 26 ℃- 28 ℃ However related research indicates that an increase in temperature leads to a decrease in work efficiency And personnel costs are much higher than energy costs Therefore how to balance comfort energy-saving and productivity in air conditioning systems is the problem to be explored in this study To understand how people's psychology physiology and productivity are affected by temperature in an indoor environment This study recruited 47 males and 42 females in their 20s and 30s to conduct experiments and evaluated their subjective psychological evaluation and productivity at 22 ℃ 25 ℃ 27 ℃ 29 ℃ air temperature The psychological part is conducted through questionnaire The productivity assessment is based on the Vienna Test System VTS: digital addition and subtraction and difference identification tests The results of this study found that people with different genders and physiological information had different psychology and productivity at different temperatures Therefore based on the experimental results three air conditioning control logics are proposed which are comfort control energy-saving control and work productivity control They can be divided into different situations such as male and female and can be used according to the gender ratio of indoor environment members The three air conditioning control logics can be used for functional partition control of a large space office environment which not only improves user comfort and productivity but also reduces air conditioner energy consumption

Date of Award	2019
Original language	English
Supervisor	Yaw-Shyan Tsay (Supervisor)