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Decarbonize Urban Heating System

China Building Energy and Emission Yearbook 2023

Author: Building Energy Research Center of Tsinghua University

Publisher: Springer Nature Singapore

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About this book

This is an open access book.

The double-carbon target has been one of the main motivations and goals for China's social and economic development. The building sector is one of the most important sectors to achieve energy saving and emission reduction.

This publication thoroughly examines China's building energy use and carbon emissions with a focus on four categories, including their characteristics and the technologies needed to achieve zero carbon emissions.

This year, the key issue is developing carbon-neutrality pathways for China's urban heating system. This report comprehensively discusses the current status and future forecast of heat demand in buildings and non-process industries, introduces the challenges facing the urban energy supply system in achieving carbon neutrality, and elucidates the low-carbon heating model based mainly on low-grade and low-carbon waste heat.

Extensive survey and monitoring data and case studies are presented throughout the book. The discussion of technologies and policies has been the subject of extensive research and evidence for over a decade. The information, data, and policy recommendations are of relevance to a national and global audience working in the fields of energy, climate change, engineering, and building science.

Table of Contents

Frontmatter

Open Access

Chapter 1. China’s Building Energy Use and GHG Emissions
Abstract
In recent years, urbanization has grown rapidly in China. In 2021, China had an urban population of 914 million and a rural population of 498 million, with the urbanization rate rising from 37.7% in 2001 to 64.7%
Building Energy Research Center of Tsinghua University

Open Access

Chapter 2. Comparison of Energy Consumption and Carbon Emissions from Building Operation Between China and Other Countries
Building Energy Research Center of Tsinghua University

Open Access

Chapter 3. Present Situation of Urban Heating in China
Abstract
Urban heating in China mainly consists of building heating, industrial heating, domestic hot water (DHW), and steam for functional buildings. The overall heat source structure of the foregoing categories is shown in the diagram below, and fossil energy is still in the majority.
Building Energy Research Center of Tsinghua University

Open Access

Chapter 4. Industrial Heating and Residual Heat Emission
Abstract
In the current industrial classification, the classification methods vary with demands. For example, the industries can be classified into light and heavy industries by product purpose and into discrete and continuous industries by mode of production.
Building Energy Research Center of Tsinghua University

Open Access

Chapter 5. DHW Heating and Steam for Functional Buildings
Abstract
According to the China Population and Employment Statistical Yearbook, China’s urban population in 2020 was approximately 900 million. In the practical project case study, the DHW consumption was about 20–40 L per person per day. By taking the DHW consumption at 20 L per person per day, the temperature after water mixing at about 40 °C, and the tap water temperature at 15 °C, the total heat demand of DHW for urban residential buildings was estimated to be about 690 million GJ.
Building Energy Research Center of Tsinghua University

Open Access

Chapter 6. Challenges Facing Urban Energy Transition Under the Carbon Peak and Neutrality Goals
Abstract
To achieve the goals of carbon peaking and carbon neutrality (the carbon peak and neutrality goals), China needs to complete the transition from fossil energy to zero-carbon energy.
Building Energy Research Center of Tsinghua University

Open Access

Chapter 7. Low-Carbon Heating Mode Dominated by Waste Heat Utilization
Abstract
In China, the current power supply and heating sources are mainly dominated by thermal power generation and coal combustion, leading to higher carbon emissions. In the future, the main task is to promote the large-scale and high-proportion transition to new energy sources in the power system and provide zero-carbon heat sources for building heating and non-process industrial production to achieve carbon neutrality.
Building Energy Research Center of Tsinghua University
Metadata
Title
Decarbonize Urban Heating System
Author
Building Energy Research Center of Tsinghua University
Copyright Year
2024
Publisher
Springer Nature Singapore
Electronic ISBN
978-981-9978-75-5
Print ISBN
978-981-9978-74-8
DOI
https://doi.org/10.1007/978-981-99-7875-5