This paper answers these questions and presents a novel open source optimisation framework for designing the piping network of a district heating system that is based on a mixed-integer...
But how do we make sure these networks deliver low carbon heat efficiently? My latest research, presented at the FairHeat Annual conference and selected to feature in the CIBSE Technical Symposium 2023, provides valuable insight into this very question.
Heat pipes, utilizing principles of phase change and thermal conduction, offer a unique approach to energy storage. They operate by evaporating a working fluid, transferring latent heat through vapor, and condensing it in lower temperature zones, thereby achieving remarkable thermal efficiency.
Heat pipes and thermosyphons—devices of high effective thermal conductivity based upon an evaporation/condensation cycle—have been studied for many years for enhancing the performance of solid, liquid and PCM heat stores.
The principle of energy storage heat pipes involves the use of a specially designed thermal energy storage system that allows efficient heat transfer and storage.
In cold environments, these materials may freeze or solidify, causing pipeline blockages that disrupt production and necessitate costly maintenance. Pipeline heating systems address this problem by stabilizing pipeline temperatures, ensuring a smooth flow
The economic problem of a clean energy heating system under a peak and valley electricity pricing system is investigated, and a pipe network energy storage system is correspondingly proposed to solve this problem.
The objective is the optimal selection of the system components among different technologies, as well as the optimal design of the heat pipeline network to allow heat exchange between different nodes in the neighbourhood.
Heat pipes, utilizing principles of phase change and thermal conduction, offer a unique approach to energy storage. They operate by evaporating a working fluid, transferring latent heat through vapor, and
But how do we make sure these networks deliver low carbon heat efficiently? My latest research, presented at the FairHeat Annual conference and selected to feature in the CIBSE Technical Symposium 2023, provides valuable insight
From ensuring people''s basic life to technological iteration, the value of the thermal pipe network is not only reflected in the practicability of heating, but also in the sustainable development significance of improving energy utilization efficiency.
In this paper, a combined heat and power dispatch (CHPD) is formulated to coordinate the operation of electric power system (EPS) and district heating system (DHS).
This paper answers these questions and presents a novel open source optimisation framework for designing the piping network of a district heating system that is based on a mixed-integer...
Heat pipes have been used extensively in a variety of energy storage systems. They are suited to thermal storage systems, in particular, in the role of heat delivery and removal, because of their high effective thermal conductivity and their passive operation.
One could therefore build heat pipes into the storage container in such a way that the enhancement structure (such as a foam) and the thermal control system—the heat pipes—have ideal thermal contact and are optimized for the desired storage cycle characteristics.
One sensible heat ‘store’ that has benefited considerably from heat pipes is the ground. The use of the ground as either a heat source or a heat sink—well known to heat pump users—to deice roads using heat pipes and, as discussed below, as a sensible heat sink for underground train thermal management.
It is the role of heat pipes (and other ‘enhanced’ heat transfer devices such as compact fin assemblies) which has allowed the practical use of heat storage systems to extend into areas where limitations on internal conduction have inhibited the performance in the past.
The storage medium may be expected to operate mainly within the −10 to +25°C band. Although the use of heat pipes for the storage at cryogenic temperatures is less known, there is no reason why heat pipes using, for example, nitrogen as the working fluid should not be employed.
By their nature, many energy storage systems should lose or gain as little heat as possible during ‘inactive’ periods, while also delivering or taking in heat (or ‘coolth’) as predetermined rates, some of which may be rather high, when required to function actively.
