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Fundamental Concepts of Flow
Published in Jesse Yoder, New-Technology Flowmeters, 2023
Superheated steam is steam that has a higher temperature than saturated steam but that has maintained its pressure. Superheated steam acts as a gas is highly sensitive to temperature and pressure measurements. It is used for energy systems, cleaning and surface technologies, and chemical reaction processing.
Uses of Cogeneration
Published in Bernard F. Kolanowski, Small-scale Cogeneration Handbook, 2021
Steam is used in many facilities to provide space heating, in-process systems, sterilization of instruments, cooking and many other applications. Cogenerators can be designed to use the waste heat to go directly to steam, usually low-pressure steam. If you’ve ever seen an automobile radiator gush steam, it is from overheating the coolant. This is an indication that the coolant was not removing heat fast enough from the car’s engine, so the coolant started to boil and create steam.
Heating and Cooling
Published in Stan Harbuck, Donna Harbuck, Residential Energy Auditing and Improvement, 2021
The steam distribution system consists of distribution piping, radiators, and control valves. Distribution piping may have either a one-pipe, as shown in Figure 9-30 or two-pipe configuration. Two-pipe systems are seldom seen in the single-family setting. In a one-pipe system, steam from the boiler rises under pressure through the pipes to the radiators. In the system, “quick vents” allow the cooler air to escape so the steam can rise more quickly through the pipes. At the radiators, they displace air. The air is evacuated through the radiator vent valves or “air vents” that automatically shut off when the hotter steam reaches them.
Advances in wood drying research and development
Published in Drying Technology, 2023
Diego Elustondo, Nirundorn Matan, Timothy Langrish, Shusheng Pang
Mujumdar[121] is one of the first to raise the attention to superheated steam drying (SSD) in the 1990s. At that time SSD had been known for more than 100 years, but the commercial application was limited with less than 10 manufacturers worldwide.[121] SSD is a convective drying technique comparable to conventional kiln drying, but with the main difference that only steam is used as the drying medium. At a given pressure, when the steam temperature is higher than the saturation temperature, the steam is superheated which possesses capability to provide heat and absorb vapor as long as the steam temperature remains above the saturation temperature (superheated). When the superheated steam is in contact with wet materials, the material is heated to above the saturation temperature thus water evaporates and the vapor diffuses into the superheated steam stream. For temperatures below 100 °C, the saturation pressure of steam is below atmospheric pressure thus the dryer needs to be operated in vacuum, so that it is usually referred as superheated steam vacuum drying (SSVD).
Thermal performance of the steam boiler based on Scheffler solar concentrator for domestic application: Experimental investigation
Published in Australian Journal of Mechanical Engineering, 2021
Vikrant Kamboj, Himanshu Agrawal, Anish Malan, Avadhesh Yadav
The aim of the existing work is to illustrate the thermal performance of the steam boiler based on Scheffler solar concentrator and to achieve a good quality of steam. In these experiments, three types of steam boiler have been used to increase the quality of steam. The boiler surface is painted with matt black paint with a subsequent attachment like acrylic glass and the side reflectors of anodised aluminium sheets to minimise the heat loss. The conclusions find under investigation are as follows: In this experiment, the steam pressure of 2.1 bar (gauge pressure) in steam boiler 1, 2 and 3 with temperatures 134.5°C, 134.4°C and 135.2°C achieved in 120, 160 and 200 min respectively.The dryness fraction of the steam for the steam boiler 1, 2 and 3 has been calculated 43.51%, 71.61% and 96.32%, respectively, with a small size of 1.54 m2 Scheffler solar concentrator.The thermal efficiency of the steam boiler 1, 2 and 3 has been calculated 18.40%, 14.53% and 14.09%, respectively.A good quality of steam has been achieved during experimentation with steam boiler 3 arrangement.
Energy efficiency in steam using industries in Greece
Published in International Journal of Sustainable Energy, 2020
Ifigenia Farrou, Andreas Androutsopoulos, Aristotelis Botzios-Valaskakis, Georges Goumas, Charilaos Andreosatos, Loukas Gavriil, Christoforos Perakis
Steam is used by many industries as a heat transfer medium for industrial end-use processes that require heat. The steam cycle consists of the following steps (ten Donkelaar and Gerykova 2016): Steam Generation – whereby steam is usually generated (either in a steam boiler or steam generator or heat recovery generator).Steam Distribution – whereby generated steam is distributed to the to the industrial processes which require heat.Steam End use – whereby the steam is used in the industrial processes which require heat.Steam Condensate return – whereby the steam condensate resulting from the steam end-use returns to the steam generation.