حساب القدرة الحرارية اللازمة لتدفئة غرفة في المنطقة الجبلية من ليبيا ( دراسة نظرية )

Abstract

This study aims to determine the rate of heat transfer (required heating power) needed to warm a room of a specified area in the mountainous regions of Libya to reach an indoor temperature of (25°C), which is considered suitable for thermal comfort according to recent studies in the field of sustainability (Sustainability, 2024).

The outdoor temperature range from (0°C) to (20°C) was divided into five gradual stages to analyze the effect of changing climatic conditions on the required heating load. The study was based on the fundamental laws of heat transfer (thermal conduction), in addition to the theoretical application of the second law of thermodynamics. The results led to the derivation of a curve illustrating the relationship between outdoor temperature and the rate of heat transfer required to compensate for heat loss and maintain thermal stability inside the room.

The findings showed an inverse relationship between outdoor temperature and the required heating power, as the need for heating increases when the outdoor temperature decreases.

This study contributes to determining the appropriate heating capacity to avoid two main issues:

Insufficient heating, which negatively affects comfort and health.

Unnecessary increase in energy consumption, which adversely impacts the economic aspect