Building Services Applications UBLMTB-30-20 Coursework CW2 Brief UWE Bristol England University of the West of Contents Introduction Questions Section A - Electrical Section B - Acoustics Section C Ventilation -
page 3 page 5 A page 5 page 7 page 9 2 Introduction The Analysis and Calculation Report requires you to demonstrate, that you can perform the analytic procedures introduced in lectures during the semester. Whereas coursework 1 was predominantly focused on whole building design, this brief asks you to focus on a single space and think about design coordination and how the different themes interact. The following subjects are covered: ● ● Electrical Design Acoustics Air Distribution System Design The key aim of this coursework is to demonstrate your methodology and an understanding of the techniques. Where drawings are requested these can be digital or neat hand drawings. The most important aspect is that they are clear. You do not need to use CAD unless you find it simpler. Marks will be awarded for clarity, accuracy, and methodology, not for the drawing technique selected. Word Count: The words in this report are simply to describe your calculations and methodology. Most of your report should be tables, diagrams, and calculations. Make sure you explain on your drawings any decisions and rationale. Coursework Submission: This coursework should be submitted digitally, and key dates are shown on Moodle Please note that the submission deadlines are absolute and based on Moodle server time, therefore you are strongly advised to submit work well ahead of the deadline dates to avoid situations where penalties could be incurred. The new regulation on the Late Submission Window allows students to submit their assignments no later than 48 hours after the submission deadline. Please submit it as a single PDF file. Only use additional files as appendices if absolutely necessary. Please try to put any layouts and drawings in order within the report and not as an appendix unless you feel unable to do this. Note: you can use a screen grab within the report and then use a clearer PDF as an appendix if this is easier. If you wish to use a spreadsheet for your calculations, then all information should be clearly laid out within the report, showing working through of all formulas and any key results stated clearly in the report. 3 It is recommended to show one clear example that covers all calculations with any repetitive formula covered within the spreadsheet. If any specific requirements are requested in the document then these should be clearly answered in the report. Note that you are marked on the quality and clarity of the drawing and information that you submit. 4 Questions: Section A - Electrical Design (40 Marks) Alongside this brief you are provided with the site plan for the building, floor plans for each level, and a floor plan for a L01 - Library. 1. Load Assessment Using the proposed development answer the following: 1. Develop an outline electrical distribution plan for the building showing an MV/LV transformation point, a main LV board, mains-cables and sub-main distribution boards, sub-mains board etc. You can use illustrations to supplement your answer. (20marks) 2. Write a description of the factors that are considered when estimating the overall Maximum Load Calculation for this type of building. (15 marks) 2. Cable Calculation (35 Marks) (5 Marks) In this section, the student is required to show all the tables in their coursework and reference them accordingly. ● You are required to calculate the size of a cable connecting an electrical load to a distribution board. The size of the load – in kW – is determined by adding the last four digits of your UWE student ID number together and adding the result to 25. e.g. If your ID is 09876789 you would have a design load of 55kW. The route your cable must follow from the distribution board to the load is as follows: From the distribution board the cable is clipped on a cable tray and runs vertically on a wall to the edge of the building envelope, a distance just short of 25m. There are 5 other cables - each assumed to be carrying a full load – sharing the tray. The cable runs through 200mm of thermal insulation when exiting the building. The cable then runs underground on its own for 275m directly buried in the soil, to where it meets the load. The thermal resistivity of the soil is less than 2.5K.m/W. Select an appropriate cable type (4A3) and the number of cores for this application and explain your choice. 5
