Author:
Suda Hana,Kobayashi Hikaru,Mori Gaito
Abstract
The indoor thermal environment comprises temperature, humidity, wind velocity, and radiant temperature. The spatial distribution of these elements is a combination of the individual responses of the heat and water vapor transported into the space from each source. The contribution ratio for indoor climate (CRI) proposed by Kato, Kobayashi, and Murakami is a single index that evaluates the effect of each heat source on the temperature by breaking down the temperature increase at position x in a room into the effect of each heat source. We extended the CRI concept to three single indices to improve its applicability. Previously, thermal environment evaluation was often performed using a composite index rather than a single index. To evaluate the combined effects of heat and moisture sources, decomposing multiple elements individually and then combining them is desirable. In this study, we propose CRISE to evaluate the contribution of a heat or moisture source to the specific enthalpy at a given point in a closed space. The index was calculated by combining a single index of dry-bulb temperature and absolute humidity. The CRISE is a useful index for evaluating the indoor thermal environment and HVAC load.
Reference4 articles.
1. Development of new indices to assess the contribution of moisture sources to indoor humidity and application to optimization design: Proposal of CRI(H) and a transient simulation for the prediction of indoor humidity
2. Suda Hana, Kobayashi Hikaru, Mori Gaito. Development of CRI(S)H to assess the contribution of moisture sources to indoor humidity and proposal of assessment method of indoor climate using CRI(S)DB and CRI(H), Summaries of Technical Papers of Annual Meeting, September 2022, Pages 1217-1218.