https://fk7.nova.moe/tools/ Recent content in 小工具 on Nova Kwok 的思域 FK7 改车笔记 Hugo en https://fk7.nova.moe/tools/ethanol/ Mon, 01 Jan 0001 00:00:00 +0000 https://fk7.nova.moe/tools/ethanol/ <h1 id="乙醇配比计算器">乙醇配比计算器<a class="anchor" href="#%e4%b9%99%e9%86%87%e9%85%8d%e6%af%94%e8%ae%a1%e7%ae%97%e5%99%a8">#</a></h1> <p>用于估算在当前油量和当前乙醇比例下，为了达到目标浓度，应该补充多少无水乙醇与汽油。</p> <blockquote class='book-hint '> <p>说明：本工具按理想混合计算，默认汽油按 E0 处理，仅用于日常估算参考。</p> </blockquote><div class="ethanol-card"> <h2>输入参数</h2> <div class="ethanol-grid"> <label for="tank-capacity">油箱容量 (L)</label> <input id="tank-capacity" type="number" min="1" step="0.1" value="50" /> <label for="current-fuel">当前油量 (L)</label> <input id="current-fuel" type="number" min="0" step="0.1" value="15" /> <label for="current-ethanol">当前乙醇比例 (%)</label> <input id="current-ethanol" type="number" min="0" max="85" step="0.1" value="0" /> <label for="target-ethanol">目标乙醇比例 (%)</label> <input id="target-ethanol" type="number" min="0" max="85" step="0.1" value="20" /> <label for="target-volume">加油后总油量 (L)</label> <input id="target-volume" type="number" min="0" step="0.1" value="50" /> </div> <button id="ethanol-calc-btn" type="button">计算</button> </div> <div class="ethanol-card ethanol-result"> <h2>计算结果</h2> <p id="result-main">请先输入参数并点击「计算」。</p> <p id="result-detail"></p> <p id="result-note" class="ethanol-note"></p> </div> <style> .ethanol-card { background: #fff; border: 1px solid #e7e7e7; border-radius: 12px; padding: 16px; margin: 14px 0; box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05); } .ethanol-grid { display: grid; grid-template-columns: 1fr; gap: 8px; } .ethanol-grid label { font-size: 14px; color: #444; margin-top: 8px; } .ethanol-grid input { width: 100%; box-sizing: border-box; border: 1px solid #d5d5d5; border-radius: 8px; padding: 10px 12px; font-size: 16px; } #ethanol-calc-btn { margin-top: 14px; width: 100%; border: none; border-radius: 8px; padding: 11px 12px; font-size: 16px; font-weight: 600; color: #fff; background: #2962ff; cursor: pointer; } #ethanol-calc-btn:hover { background: #1f53de; } .ethanol-result p { margin: 10px 0; } #result-main { font-size: 22px; font-weight: 700; color: #1f4ed6; } .ethanol-note { color: #8a4a00; } </style> <script> (function () { function getInput(id) { return document.getElementById(id); } function getValue(id) { var value = Number(getInput(id).value); return Number.isFinite(value) ? value : NaN; } function setResult(main, detail, note) { document.getElementById("result-main").textContent = main; document.getElementById("result-detail").textContent = detail || ""; document.getElementById("result-note").textContent = note || ""; } function round2(n) { return Math.round(n * 100) / 100; } function calc() { var capacity = getValue("tank-capacity"); var currentFuel = getValue("current-fuel"); var currentEthanolPct = getValue("current-ethanol"); var targetEthanolPct = getValue("target-ethanol"); var targetVolume = getValue("target-volume"); if ( !Number.isFinite(capacity) || !Number.isFinite(currentFuel) || !Number.isFinite(currentEthanolPct) || !Number.isFinite(targetEthanolPct) || !Number.isFinite(targetVolume) ) { setResult("输入无效", "请检查所有输入项。"); return; } if (capacity <= 0 || currentFuel < 0 || targetVolume <= 0) { setResult("输入无效", "油量和容量必须是有效的正数。"); return; } if (currentFuel > capacity) { setResult("输入无效", "当前油量不能大于油箱容量。"); return; } if (targetVolume > capacity) { setResult("输入无效", "加油后总油量不能大于油箱容量。"); return; } if (targetVolume < currentFuel) { setResult("输入无效", "加油后总油量不能小于当前油量。"); return; } if ( currentEthanolPct < 0 || currentEthanolPct > 100 || targetEthanolPct < 0 || targetEthanolPct > 100 ) { setResult("输入无效", "乙醇比例请填写 0 到 100 之间的数值。"); return; } var ec = currentEthanolPct / 100; var et = targetEthanolPct / 100; var addTotal = targetVolume - currentFuel; var ethanolNeed = targetVolume * et - currentFuel * ec; var gasNeed = addTotal - ethanolNeed; var eps = 1e-9; if (addTotal < eps) { setResult( "无需加油", "当前油量已经等于目标总油量。", "若仍需调整乙醇比例，只能先消耗或放出部分燃油后再重新计算。" ); return; } if (ethanolNeed < -eps || gasNeed < -eps) { setResult( "当前条件下无法直接达成", "在不放油且仅补充 E0 汽油 + 无水乙醇的条件下，该目标不可达。", "可尝试：降低目标乙醇比例、提高目标总油量（接近加满）、或先消耗当前燃油后再计算。" ); return; } ethanolNeed = Math.max(0, ethanolNeed); gasNeed = Math.max(0, gasNeed); setResult( "应添加乙醇 " + round2(ethanolNeed).toFixed(2) + " L，汽油 " + round2(gasNeed).toFixed(2) + " L", "本次总补油量: " + round2(addTotal).toFixed(2) + " L", "计算假设补充乙醇为 E100，补充汽油为 E0。" ); } document.getElementById("ethanol-calc-btn").addEventListener("click", calc); calc(); })(); </script>