LO1 Calculate energy transfer rates in different building services contexts
Unit 22 Scientific Principles for Building Services
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Unit Number and Title |
Unit 22 Scientific Principles for Building Services Pearson Unit Code: R/618/8102 |
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Academic Year |
2024 - 2025 |
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Assignment Title |
Unit 22 Scientific Principles Assignment A |
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Date |
04 November 2023 |
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Submission Format: |
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You are to submit one A4 word-processed document, to include all attempted tasks. The choice of font face, font size and line spacing are left to your discretion. However, as a professional report, clarity and readability are critically important. You are encouraged to use diagrams and graphics to help to explain the topics. Any material (images, drawings, diagrams, text) that is derived from other sources must be suitably referenced using the Harvard form of referencing. Citations must appear within your text. The final page(s) of your assignment should include a bibliography of any material used in support of your research. The order of the references must follow the order in which the citations appear in your assignment. |
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Learning Outcomes |
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This assignment will assess learning outcomes LO1 and LO2 for which you will be expected to calculate energy transfer rates in different building services contexts and evaluate conditions of static and dynamic fluid flow to determine energy loss. LO1 Calculate energy transfer rates in different building services contexts LO2 Evaluate conditions of static and dynamic fluid flow to determine energy loss |
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Assignment Scenario: |
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Calculate energy transfer rates in different building services contexts. |
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Assignment Scenario: |
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Your current role as a technical design engineer will help to build a successful team within your organisation. Your line manager will require a technical memorandum of supporting material to distribute to the new members of the team to help develop their understanding of the mechanisms of heat transfer related to building services engineering. The line manager suggests that your technical memorandum specifically covers: A description of how conduction, convection and radiation contribute to heat transfer in composite materials with illustrated examples of each mechanism within different forms of composite structures. The method used to determine the risk of interstitial condensation in multi-leaf plane structures with illustrations to help analyse how moisture moves through the layers of the structure and where it might condense. Calculate conduction rates used in various building services plant and equipment, to include the variables used to perform these calculations. In fluid systems, discuss the types of fluid flow, explain what is meant by ‘fluid energy’ and the potential mechanisms of energy losses in BSE systems. Show how to calculate the energy loss in pipe and duct networks, using appropriate formulae for a BSE applications. |
Summative Assignment Feedback
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U22 Scientific Principles for Building Services |
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U22A1 |
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Criteria |
Merit |
*Achieved/Referred |
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P1 |
Determine heat transfer through different forms of composite structure. |
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P2 |
Determine the risk of interstitial condensation in multi-leaf plane structures. |
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P3 |
Calculate conduction rates used in various building services plant and equipment. |
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P4 |
Discuss the types of fluid flow, fluid energy and the potential mechanisms of energy loss. |
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P5 |
Calculate the energy loss in pipe and duct networks, using appropriate formulae. |
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M1 |
Evaluate the impact of heat transfer on thermal comfort and efficiency of building services plant and equipment. |
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M2 |
Analyse the relationship between frictional energy loss under different gravitational flow conditions. |
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D1 |
Critically evaluate the efficiency of different forms of heat transfer for a given range of heat emitters, plant and equipment. |
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D2 |
Critically evaluate fluid flow and energy principles in relation to their application in the design and control of building services engineering. |
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Assessor signature and date: |
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* Please note that grade decisions are provisional. They are only confirmed once internal and external moderation has taken place and grade decisions have been agreed at the assessment board. |
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Resubmission Feedback |
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Assessor Signature: |
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Internal Verifier’s Comments |
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Student declaration I certify that the assignment submission is entirely my own work and I fully understand the consequences of plagiarism. I understand that making a false declaration is a form of malpractice. Student signature: Date: |
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Everything You Must Know About Unit 22 Scientific Principles for Building Services
Unit 22 Scientific Principles for Building Services focuses on the fundamental scientific concepts that underpin the design, installation, and operation of building services systems. This unit provides an in-depth exploration of the physical and mathematical principles that guide the functionality and efficiency of modern building services, such as heating, ventilation, air conditioning, lighting, and plumbing systems. By linking theoretical knowledge to practical applications, it equips learners with the analytical skills required to optimise energy use, enhance sustainability, and ensure regulatory compliance within buildings.
A key emphasis of this unit is understanding how scientific principles, such as thermodynamics, fluid mechanics, and electrical theory, directly impact building systems. For example, learners delve into the behaviour of heat transfer, the flow of fluids in pipework, and the characteristics of electrical circuits, ensuring they can make informed decisions in real-world scenarios. Moreover, the unit encourages a critical appreciation of how these principles integrate within larger systems to deliver comfort, safety, and efficiency to occupants.
By fostering problem-solving skills and an attention to detail, the unit prepares learners to address challenges associated with modern building demands, such as improving energy efficiency and incorporating renewable technologies. It also highlights the importance of a scientific approach in tackling emerging industry concerns, including the reduction of carbon footprints and adapting to climate change.
Ultimately, this unit bridges the gap between theoretical science and the practicalities of building services engineering, laying a strong foundation for advanced study or professional roles in the field. It fosters both a technical mindset and an understanding of the broader environmental and economic implications of engineering decisions, making it highly relevant in the context of sustainable development and innovation.
Example Answer to Unit 22 Assignment
LO1 Calculate energy transfer rates in different building services contexts
This has not been done according to the current scenario, place an order to get guaranteed pass, plagiarism-free work.
Technical Memorandum
To: New Members of the Technical Design Team
From: [Your Name], Technical Design Engineer
Subject: Mechanisms of Heat Transfer and Key Calculations in Building Services Engineering
1. Heat Transfer Mechanisms in Composite Materials
Conduction:
Conduction occurs when heat energy transfers through a material due to a temperature gradient. In composite materials, this process is influenced by the thermal conductivity of individual layers. For example:
- Illustration: In a composite wall structure (e.g., plasterboard-insulation-brick), heat travels from the warmer interior through the high-conductivity insulation layer to the cooler exterior.
- Key Factors: Material thickness, thermal resistance, and contact surfaces.
Convection:
Convection involves the movement of heat within a fluid medium, such as air or water.
- Illustration: Within double-glazed windows, air trapped between the panes reduces convective currents, improving insulation.
- Relevance: This mechanism affects systems like HVAC ducts, where air distribution efficiency depends on controlling convection.
Radiation:
Radiation is the transfer of heat via electromagnetic waves without requiring a medium.
- Illustration: Composite roof structures with reflective foil layers reduce heat gain by reflecting infrared radiation.
- Application: Effective in reducing solar heat loads in buildings.
